The recent developments in Cosmology have shown that the infinitely big (the Universe) and the infinitely small (fundamental forces and particles, structure of spacetime at the microscopic, subatomic level) have never been so close to each other. Physicists studying both "infinities" ask the same questions and look for the same answers. The reader will feel comfortably cradled between these two infinities. The text manages to present the latest, on-going "revolution" brought about by the recent direct detection of gravitational waves in a simple way yet respecting and reflecting the deep meaning of it. Enjoy!
Since completing his PhD at the University of Oxford and the Institute of Astrophysics in Paris, Gianfranco Bertone has held teaching and research positions at the Fermi National Accelerator Laboratory, the University of Padova, the Institut d'Astrophysique in Paris and the University of Zurich, before moving permanently to Amsterdam in 2011. He was the Founding Spokesperson of the GRAPPA Center of Excellence in Gravitation and Astroparticle Physics at the University of Amsterdam. Since July 2019 he is the Founding Director of the European Consortium for Astroparticle Theory.